National Creampuff Day and National Buffet Day in United States

National Bloody Mary Day and National Black Eyed Peas Day in United States on January 1;

Commitment Day on January 1 (The first known Commitment Day was celebrated in 1960 as an extension of the tradition of New Year’s Resolutions—however);

First Foot Day on January 1;

Polar Bear Swim Day or Polar Plunge Day on January 1 (Canada and United States);

Z Day on January 1 (People whose first or last name start with the letter Z must have it pretty rough. Most processes, systems and organizations use alphabetical sorting as standard, meaning they are always last no matter the place or occasion);

Happy Mew Year for Cats Day on January 2 (The founders, Tom and Ruth Roy, wanted cats to have a very special New Year's celebration all to themselves);

Run it Up the Flagpole and See if Anyone Salutes Day on January 2 (It means to float an idea to see what people think, or if they notice);

Science Fiction Day on January 2;

National Pet Travel Safety Day in US on January 2;

National Chocolate Covered Cherry Day on January 3;

Festival of Sleep Day on January 3 (the holiday encourages people to catch up on their sleep post-holiday and New Year celebrations);

Humiliation Day on January 3 (as a time to recognize the negativity of humiliating someone, or a group of people)